We visited the place in autumn and only spend about 1 night in Yeosu-si; which I find it too short to explore the city; however, we were able to cover the major attractions - Odong-do and Dolsan Park.
You may choose to enter the Odong-do on foot or go for a 30minutes tour with the ferry before entering Odong-do. You may spend half a day around Odong-do while visit Dolsan Park at night. It will be better if you rent a vehicle instead of travelling around the city by taxi.
We went to Yeosu for the World Expo. We also visiting some of the main sights such as the Jinnamgwan, replica turtle ship (small fee), Jasan Park, Dolsan Bridge.
There is a lot more to see and do, this is what we had time for.
Basic Korean will help you a long way as people here knew little English. Tourist Information Booth would be the best place in communicating in other languages.
Yi Sun Shin square, Odongdo & Yeosu Expo are the must visit place. Try to experience with S-Train if you are from Busan to Yeosu.
Yeosu is mostly a quiet city with a small town feel. Located on the southern coast, it is famous for its delicious seafood.
Be sure to try the seafood stew that the city is famous for. The Yeosu Expo is huge and would be a fantastic place to visit for business purposes or conferences. In addition, the many islands scattered around the south of the city provide nature lovers opportunities to soak in the natural beauty of the area. Not big on shopping or entertainment, Yeosu is an ideal place for those seeking to get away from the hustle and bustle of the larger cities.
Yeosu-si is still under developing after the 2012 Expo. Thinking it will become better one to two years later.
A lovely place for relaxing, sunshine, sea, nature walks, islands... good to go for spring, summer!
After hosting the world marine expo in summer of 2012, Yeosu has probably benefited from better services.
Yeosu has all the amenities that every Korean city has, but offers some nice harbor views, and coastal scenes, sunsets and sunrises.